Improve WebUI users sort

[itaigilo]

Change Description

Background

Currently, the WebUI Users page displays the list of users, as fetched from the server.
The issue is that the server sorts the users by their id, while the UI is displaying the User ID for each user using a more complex logic (email => friendly_name => id).
This creates a confusing situation: where some users has emails while others don't have, the sorting might be messed up.

For example:

List of users:

[
  {id: 'ccc`},
  {id: 'zzz', email: '[email protected]'} 
]

Actual display:

User ID
-------
ccc
[email protected]

Change

This PR aligns the display order to be sorted according to the displayed User ID.

Testing Details

Tested manually on my local env.

Additional info

Note that this is not a complete solution, since the UI uses pagination.
But it should at least improve the current state, and make it easier to find users on the current results page.

A complete solution will require a bigger change to support it, which will probably involve both changing the UI and change the default sorting of the API.

[github-actions]

E2E Test Results - Quickstart

[github-actions]

E2E Test Results - DynamoDB Local - Local Block Adapter

[itaigilo]

Closing as #8413 already handles this one.